Question

An untitled graph with elapsed time on the x axis in seconds, numbered 0 to 7, Speed on the y axis in centimeters per second, numbered 0 to 180. Line A has points (0, 0), (1, 1), (2, 3), (3, 7), (4, 12), (5, 18). Line B has points (0, 8), (1, 8), (2, 8), (3, 8), (4, 8), (5, 8). Line C has points (0, 0), (1, 1), (2, 2), (3, 3), (4, 4), (5, 5).
Use the drop-down menus to answer each question.

Which line represents the movement of a cart with a constant acceleration?

Which line represents the movement of a cart with a constant velocity?

Which lines represents a cart with no velocity or acceleration?

Answer 1

Constant acceleration: Line C (speed increases by 1 cm/s each second).

Constant velocity: Line B (speed is 8 cm/s at all times).

No velocity or acceleration: none of the lines (no line shows speed = 0 for all times).